This figure is not drawn to scale. It is made up of 3 squares. The ratio of the area of the smallest square to the largest square is 1 : 7 while the shaded area is
12 of the unshaded area. What is the ratio of area of the smallest square to the shaded area?
Smallest square |
Largest Square |
Shaded area |
Unshaded area |
7x3 |
3x7 |
1x3 |
7x3 |
1x7 |
2x7 |
3 u |
21 u |
7 u |
14 u |
The total area is repeated. Make the total area the same. LCM of 7 and 3 is 21.
Area of smallest Square : Shaded area
3 : 7
Answer(s): 3 : 7